Don't panic! (Gee, I've said that a lot this year with the delayed shipments of flu vaccine...)
Why not panic?First, this is a theoretical concern. It is based on the findings that the FluMist didn't cover the H1N1 well last season and it is the same vaccine this year.
Second, the main strains of influenza that are starting to circulate this year are NOT that H1N1 strain anyway.